What is the meaning of Au?

IAU recommended unit symbol for astronomical unit

Abbreviation of atomic unit.

Abbreviation of arbitrary unit.

Abbreviation of astronomical unit.

Abbreviation of Absorbance Units.

also, too

you (singular)

yes

dog (animal)

up, upwards

north, up north

grease, fat, oil

yes

dog (animal)

you (singular)

ash

Alternative form of awe

yes

mouth

I (personal pronoun)

me (direct object of a verb)

me (object of a preposition)

me (indirect object of a verb)

my (belonging to me)

also, too

ouch!

also, too

ouch!

imperative of aua

Contraction of a le (“to the”).

Alternative spelling of áu (“ear”)

I, me

current

to take; to seize; to receive

to marry

blood

blood

I, me

thy, your

to reach

to be matured at birth

current, flow (of water)

gall, bile

gall bladder

needle for thatching

comb of needles for tattooing

I (personal pronoun)

me (direct object of a verb)

me (object of a preposition)

me (indirect object of a verb)

my (belonging to me)

to climb, ascend

to rise

yes

bird

now (as an incitement to action or to a decision)

bird

ouch

ouch!

H-system spelling of aŭ

honour/honor, respect

I (personal pronoun)

me (direct object of a verb)

me (object of a preposition)

me (indirect object of a verb)

my (belonging to me)

ow, ouch

Contraction of à le (“to the, for the, at the”).

I (personal pronoun)

era, period of time

current (water)

movement

to flow

to move

tree

An exclamation of awe and surprise; wow.

Rōmaji transcription of あう

Alternative form of hau (“expressing pain or grief; oh! ah!”)

I (personal pronoun)

me (direct object of a verb)

me (object of a preposition)

me (indirect object of a verb)

current (water)

whirlpool; rapid

wake (of a canoe, etc.)

sea; ocean

gall; gall bladder

smoke

cloud

mist; fog

to howl, bark (of a dog)

ouch (expression of one's own physical pain)

ouch (expression of minor physical pain)

third-person plural present indicative of avea

(ele/ei) au (modal auxiliary, third-person plural form of avea, used with past participles to form perfect compus tenses)

or

well?, (now) really?

or

I (personal pronoun)

me (direct object of a verb)

me (object of a preposition)

me (indirect object of a verb)

my (belonging to me)

to sew

bamboo

I (personal pronoun)

me (direct object of a verb)

me (object of a preposition)

me (indirect object of a verb)

my (belonging to me)

bright and cheerful

Source: wiktionary.org